Microsoft is rolling out Windows 11 Insider Experimental Preview Build 26340.9212, and this flight introduces an interesting change that could make one of Windows’ most frequently used features feel cleaner and more customizable.
The latest preview focuses primarily on File Explorer and the Start menu, with Microsoft gradually testing changes among Insiders. As with other experimental builds, not every feature will appear for everyone immediately.
File Explorer Gets a Redesigned Right-Click Menu
The biggest change in Build 26340.9212 is a newly redesigned context menu in File Explorer.
Microsoft says the updated menu is being designed to feel faster, cleaner and easier to customize. The company is reducing the amount of clutter at the top level while keeping frequently used actions within easy reach.
The redesigned experience also introduces a new Settings option, giving users more control over what appears in the context menu.
The goal is straightforward: make the familiar right-click experience feel more responsive and predictable while allowing users to tailor it to their workflow.
Microsoft is rolling out the redesigned context menu gradually, so some Windows Insiders may not see it immediately after installing Build 26340.9212.
Why the Context Menu Change Matters
The Windows 11 context menu has been a frequent source of discussion since Microsoft introduced its redesigned interface. While the newer design looks cleaner, some users have complained that commonly used commands can require additional clicks.
The new experimental design appears to be Microsoft’s attempt to find a better balance between simplicity, accessibility and customization.
If the testing goes well, the changes could eventually make their way to a broader Windows 11 release.
File Explorer Image Preview Bug Fixed
Build 26340.9212 also addresses an issue affecting image previews in File Explorer.
Microsoft says a problem introduced in the previous flight could cause image previews to display an unexpected thick band across the middle.
The latest build fixes that problem, making image previews appear correctly again.
Personalized Start Menu Rollout Adjusted
Microsoft is also changing how the personalized Start menu is being rolled out.
Some Insiders may temporarily notice that personalized Start menu features disappear after installing the new build. Microsoft says this is related to an adjustment in the rollout population rather than necessarily indicating that the feature has been removed.
For Insiders who no longer see the feature, Microsoft says it can be re-enabled through feature flags.
This is another reminder that experimental Windows features can appear, disappear and change during the testing process before Microsoft decides whether to ship them more broadly.
Windows 11 Build 26340.9212: What’s New?
Here are the main changes currently being rolled out:
- Redesigned File Explorer context menu with a cleaner layout.
- New context menu Settings experience for greater customization.
- Reduced top-level clutter while keeping common actions accessible.
- File Explorer image preview fix for the thick-band issue.
- Adjusted rollout of the personalized Start menu.
- Some Start menu features may temporarily disappear for certain Insiders.
- Feature flags can be used to re-enable the personalized Start menu experience.
A Small but Important Windows 11 Experiment
Build 26340.9212 isn’t a massive Windows 11 feature update, but the redesigned File Explorer context menu could become one of the more noticeable interface changes if Microsoft eventually expands the test.
The ability to control which actions appear in the right-click menu could be particularly useful for power users who rely heavily on File Explorer.
For now, however, Microsoft is treating the experience as an experimental rollout, meaning the design and functionality can still change based on Insider feedback.
Microsoft is asking testers to submit feedback through Feedback Hub (Win + F) under Files, Folders, and Online Storage > File Explorer.
Bottom Line
Windows 11 Insider Build 26340.9212 continues Microsoft’s gradual experimentation with the operating system’s interface. The redesigned File Explorer context menu is the headline change, while fixes to image previews and adjustments to the personalized Start menu round out the release.
If Microsoft can make the new context menu both simpler and more customizable, it could address some of the long-standing complaints surrounding the Windows 11 right-click experience.
Stay tuned to WinCentral for all latest news about Windows 11 update related news and keep reading our full coverage here.
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